Folder mounting for sewing machines



y c. F. RUBEL FOLDER MOUNTING FOR SEWING MACHINES Filed Nova 26, 1927Patented May 6, 1930 UNITED STATES.

PATENT OFFICE CHARLES F. RUBEL, or crr caeo, ILLINOIS, ASSIGNOR TO UNIONsrEcIaL MACHINE COMPANY, or cnrcaeo, ILLINOIS, A co aronn'rron orILLINOIS FOLDER MOUNTING FOR MACHINES Application filed November 26,1927. Serial No. 235,893.

The invention relates to new and useful improvements in folders forsewing machines, and more particularly to the mount.-

ing for a folder.

, An object of theinvention is to provide a mounting for a folderwhereby the folder may be quickly removed from the mounting withoutrequiring the removal of screws or other securing means.

A further object of the invention is to'provide a folder mountingwherein the folder may :be removed and quicklyreplaced on the machine inprecisely the same position as it was before it-was removed.

A still further object of the invention is to provide a folder mountingfor sewing inachines wherein the folder may be shifted a slight distanceaway from :the needles without detaching the same'from its supporting'20 means. 7 f

Another objectof the-invention is to provide a folder mounting foracylindrical "bed machine, wherein the securing means for the mounting isdisposed so as .n0t;t0 in any way interfere with the free feed of thematerial into the folder. 7

These .and other objects :will in part be obvious and will in part behereinafter more fully disclosed. I I

In ,the drawings which show by way of illustration one embodiment of theinvention 7 Figure l'is a side view @showingaportion of a sewing machinewith my improved as mounting for a folder, and with :the folder shown infull lines as moved away from the needles without detaching the folderfrom its supporting means;

Fig. 2 is a sectional view through the work arm showing the folder andits mounting in front elevation;

Fig. 3 is a sectional view through the folder and themountingtherefonand Fig. 4 is a perspective view showing thebase-portion ofthe folder and the mounting therefor. V

The invention is directed broadly to a mounting for a folder, andpreferably a folderof thetype which is adapted-for felling. The folderincludes a base portion carrying an under scroll which guides and foldsupwardly and inwardly the lower edge portion of the fabric. Mounted onthis base portion is a fabric support carrying an upper scroll, whichreceives and folds downwardly and inwardly the edge portion of the upperportion of fabric. The two sections of the folder will interfold theedge portions of the fabric and thus form a fell. The folder is securedto a mounting therefor, so that the folder may be shifted on themounting without detaching it from the mounting. The folder is securedto the mounting through inter-engaging parts formed integral with thefolder and the mounting, and no screws or othersecuring means arenecessary. Thus it is that the folder maynot only be shifted 011 themounting, but nay be quickly removed fromthe mounting, and thus removedfrom the machine. Then again, the folder yb q ya h d t t em vrnt nghanwhen attached to the mounting and moved to its forward positiomit willhave thesame position relative to the needles as before it was ,removed.The mounting isladji stabl for varyingthe position ofthe' folder,.-butthe folder always ,has a predetermined position on=theJI ounting when inpositionfor fonm ing afell seam. l r

Referringmore in detail to the drawings, the folder illustrated includes.a supporting base l-whichisprovided with an-under scroll member =2. Thefabric is .guidedlalong the portion 18 of .the supporting gloase, andthe under .scrolli turns the edge upwardly and inwardly. Removably and,adjustably .connected to this supporting base is the upper portion ofthe gfolderwhich-includes a fabric support for the other section of,fabrigand this fabric support tcarries andleads intoan upper scroll 5Theupper scroll 5,is formed with an S-shaped portion, 6, and this 8-shaped portion is sodisposed -that the edge of ,the lower .section' offabric extends into the upper recess of-the is-shaped portion, while-theedge portionof the other section of fabric extends into the lower recessof said S-shaped ,portion. "Thus it .is that the fabricsare-interfoldedgto. :form the fell.

After the fabrics pass -through ;folder,

the needle and beneath the plate.

they are led beneath a presser foot 7 and are stitched by a stitchingmechanism including needles 8. One or more needles maybe used.

The machine to which the invention is ap plied includes a cylindricalwork support 9, and the folder is secured to the work support by myimproved folder mounting. This folder mounting consists of a plate 10which is preferably curved to conform to the upper curved face of thecylindrical work suport. This mounting 10 is provided with slots 11, 11.Screws 12 pass through these slots, and are threaded into the worksupporting arm 9 for firmly securing the mounting to the work support.The slots are elongated in the direction of the longitudinal axis of thework support, and thus it is that tae mounting may be shifted toward orfrom the needles and secured in adjusted positions through the screws12. At one side of this mounting 10 is a sleeve 13. The sleeve has theupper portion thereof cut away, forming a stop shoulder 1d. Thesupporting base of one of the folders has an arm 15 formed integraltherewith. This arm extends forwardly from the upper front edge of thesupporting base, and is thence bent downwardly and extends in ahorizontal direction beneath thesupporting base so that it may beinserted in the sleeve 13. Said arm conforms in cross sectionsubstantially to the opening in the sleeve, and the arm can slide freelyin the sleeve, or it can rotate in the sleeve, thus al lowing thesupporting base to pivot about the sleeve. The arm may be forced intothe sleeve until the bent portion of the arm engages the stop shoulder14, and this determines the extreme inner position of the supportingbase on the folder mounting. The arm is partially withdrawn from thesleeve, but is held supported by the forwardly projecting cut-awayportion of the sleeve. The other edge of the'supporting base is adaptedis be passed underneath an overhanging securing plate 16 which is formedintegral with the mounting. The folder is brought down into the plane ofthe recess beneath this securing plate 16 and is then moved toward Thesupporting base of the folder preferably engages the mountingcentrallythereof, so that it has to be sprung slightly to pass the outer edge ofthe supporting base beneath this securing plate. Thus it is that theplate will grip the supporting base so as to hold it in its set positionon the mounting. The head of the screw 12 projects above the plane ofthe base of the folder and serves as a limiting stop to limit themovement of the supporting bracket. This permits the folder to beslipped back along the support and away from the presser foot for theinsertion of very heavy work, such as the ends of elastics, heavy crossseams, etc. When it is desired to remove the folder, the left-hand screw12 is removed. The

right-hand screw will hold the folder mount ing in difierent adjustedpositions. The folder may be moved away from the needles on thesupporting base and entirely discon nected therefrom. Another folder maybe substituted therefor and properly placed relative to the stitchingmechanism without loosening the adjustment of the supporting base on thework support. In the placing of the folder, the end of the arm is placedon the ex tension of the sleeve, which will guide it into the sleeve,and the folder is turned down so that the opposite side or outer portionof the supporting, base may pass underneath the supporting plate 16.WVhen the folder is moved all the: way intoward the needles, then itengages the stop shoulder 14, and this insures that the folder isreplaced in precisely the same position that it was removed from themachine. When it is desired to. change the position of the folderrelative to the needles, then the screws 12 are loosened and themounting shifted on the work supportmg arm. g 7

It will be noted that the folder can be drawn back a slight distancefrom'the needles, if desired, without removing the folder from themounting, and thiscan be accomplished without the necessity of takingout any screws or other securing means. p *This mounting makes a veryeflicient support for a folder on the end of a work supporting arm. Thefolder and its mounting therefor is particularly well adapted forfelling tubular articles, such as sleeves or leg portions of garments. p

{It is obvious that minor changes in the details of construction and thearrangement of the partsmay be made without departing from the spirit ofthe invention as set forth in the appended claims.

' Having thus described the invention, what i I claim as new and desireto secure by Letters-Patent, is j j V 1; In a sewing machine, a folderhaving means for interfolding fabric sections, a mounting for saidfolder, means for securing the mounting to the sewing machine, and meansfor removably securing the folder to the mounting, said last-named meansincluding inter-engaging parts formed integral with the folder and themounting, said interengaging parts including an arm integral with thefolder and a sleeve integral with the mounting adapted to receivesaidarm, said arm having a pivotal and a sliding engagement-with saidsleeve.

2. In a sewing machine, a folder having a supporting base, an armintegral therewith, a mounting'for said folder, means for securing saidmounting to the sewing machine, said mounting having at one sidethereof, a sleeve adapted to receive said arm," and-at the other sidethereof, an overhanging securing plate underneath which the supportingbase may be sprung for securing the folder to the mounting.

8. In a sewing machine, a folder having a supporting base, an armintegral therewith, a mounting for said folder, means for securing saidmounting to the sewing machine, said mounting having at one sidethereof, a sleeve adapted to receive said arm, and at the other sidethereof, an overhanging securing plate underneath which the supportingbase may be sprung for securing the folder to the mounting, and a stopfor limiting the sliding movement of the folder relative to the mountingso that said folder may be placed in a predetermined set positionrelative to the mounting.

4L. In a sewing machine, a folder having a supporting base, an armintegral therewith, a mounting for said folder, means for securing saidmounting to the sewing machine, said mounting having at one sidethereof, a sleeve adapted to reecive said arm, and at the other sidethereof, an overhanging securing plate underneath which the supportingbase may be sprung for securing the folder to the mounting, saidsecuring means for the mounting permitting the same to be adjusted inthe sewing machine toward and from the stitching mechanism.

In testimony whereof I aflix my signature.

CHARLES F. RUBEL.

